During sublimation particles in a solid room deodorizer move directly into the air as a gas how does the movement of the deodorizer particles change? the particles a) move fast enough that the attraction between particles is overcome completely b) lose enough energy that the movement completely stops c) move slowly enough that strong attractions form, pulling the particles together d) are only able to slip and slide past each other

Option (A) is the correct answer.

Explanation:

Sublimation is a process in which molecules of a solid substance are converted directly into gaseous phase without undergoing liquid phase.

This is because solid particles absorb the heat from their surroundings due to which bond between the molecules are broken down. As a result, molecules gain kinetic energy and they move rapidly into the atmosphere.

Thus, we can conclude that in the given situation the particles move fast enough that the attraction between particles is overcome completely.

russian is not my first language, so i'm afraid i can't write out an answer in russian, but hopefully you can find a way to do so. here's my best translation of the problem: you're given a plot of a particle's position in one-dimensional space over time, and you're asked to find either the total distance traveled by the particle after 6 seconds had elapsed, or the total displacement of the particle after 6 seconds.

if you want the total distance traveled, you would first need to determine the particle's velocity as a function of time, then integrate that over the 6-second interval. we know the position function is quadratic with roots at 0 and 6, so we have

where is unknown. because the position is parabolic, there is symmetry about the midpoint at , and we know that

so that the position function is

which means the velocity is

then the total distance traveled is

so the total distance traveled is 20 m.

on the other hand, if you want to find displacement: the particle starts at and ends at , so its displacement is 0.